SECTION 3
3-4
3-/ 4-Cylinder
Manufacturer Special Tools Required
None
General Equipment Required
Fuel Pressure Gauge, 0 - 15 psi [0 - 103 kPa / 0 - 1 kg/cm
2
]
Torque Wrench, 0 - 150 in-lb [0 - 17 N-m / 0 - 1.7kg-m]
Digital Pulse Tachometer, 10 RPM,
Electonic Specialties
®
Model 321 or equivalent
Flexible Fuel Tubing, 1/4 in. I.D. x 5 in. [6 mm I.D. x 127 mm]
Flexible Fuel Tubing, 3/8 in. I.D. x 5 in. [9.5 mm I.D. x 127 mm]
Gearcase Pressure Tester,
Stevens
®
S-34 or equivalent
Consumable Supplies Required
Thread Locker,
Loctite
®
242
Isopropyl Alcohol
Cleaning Solvent
Engine Lubricant,
Genuine Engine Oil or NMMA Certified TC-W3 Oil
Gasket Sealant,
Permatex
®
High Tack Gasket Sealant
FUEL SYSTEM REQUIREMENTS
Acceptable Fuel
Any premium gasoline with pump posted octane rating over 89
(research octane rating of 91) and with no more than 10% Ethanol
by volume.
Unacceptable Fuel
Gasoline with more than 5% Methanol (even if it contains co-
solvents or corrosion inhibitor) or more than 10% Ethanol, regardless
of the octane rating.
Fuel Storage Life
Untreated gasoline or premixed fuel stored longer than 2 weeks
should not be used for outboard engine operation. Fuel treated with
a stabilizer additive at the time of storage should not be used after
a period of 3 months.
Acceptable Lubricant
Any NMMA certified TC-W3 2-cycle outboard engine oil is
acceptable for automixing system and fuel tank premix
applications. Do not use automotive oils which can damage the
engine and shorten spark plug life.
CAUTION
Do not mix different brands or types of oil. Doing
so can cause oil gelling which may block the oil
filter screen and cause serious powerhead
damage due to lack of lubrication.
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